Automatic closing device for elevator-well gates.



A. RUNKEL. AUTOMATIG CLOSING DEVICE FOR ELEVATOR WELL GATES. APPLICATIONFILED JAN. 28, 1910. 968 1 97, Patented Aug. 23, 1910.

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UNITED STATES Parana orron.

ALBERT BUNKEL, OF NEW YORK, N. Y.

AUTOMATIC CLOSING DEVICE FOR ELEVATOR-WELL GATES.

To all whom it may concern:

Be it known that I, ALBERT RUNKEL, a citizen of the United States, and aresident of the city, county, and State of New York, have inventedcertain new and useful Improvements in Automatic Closing Devices forElevator-Well Gates, of which the following is a full, clear, and exactspecification.

My invention relates particularly to improvements in automatic closingdevices for elevator well gates of a vertical hinged type.

The principal object of my invention is to provide a simple andinexpensive device for automatically closing the well gates as theelevator passes the various floors.

I attain the object specified as well as others, which I have not hereinenumerated, by means of the device shown in the accompanying drawings inwhich similar reference characters refer to similar parts throughout theseveral views.

Figure 1 is a view in elevation of an elevator well showing a portion ofthe car and my automatic device in relation thereto. Flg. 2 is a view inelevation from the interior of the well, showing the closing device andgate. Fig. 3 is a plan view of my device. Fig. 4 is a detailed view,partly in section, of the driving member of my device. Fig. 5 is a planview of the frame or casing shown in Fig. 1. Fig. 6 is an end view ofthe same. Fig. 7 is a plan view in detail showing the driven member.Fig. 8 is an end View of Fig. 7.

In said drawings reference character (1) indicates the walls of theelevator well.

(2) indicates an upright part of the elevator car, to which is suitablyfastened a pair of cams (3).

The gate consists of a jamb or frame member (a) and an upright member(5) connected by a series of pivoted cross bars (6). I prefer to fastenthe alternate cross bars on opposite sides of the upright members, as isshown in Figs. 1 and 2. This form of gate is opened by swinging itvertically against the jamb.

My automatic closing device comprises a driving member (Figs. 4, 5 and6), and a driven member (Figs. 7 and 8), arranged to cooperate as shownin Fig. 3.

The driving member consists of a suit-- able frame or casing (7)fastened to the side wall of the well, bearing a horizontally movableshaft (8), provided with a disk- Specifieation of Letters Patent.

Application filed January 28, 1910.

Patented Aug. 23, 1910. Serial No. 540,682.

shaped foot piece (9) and a cone-shaped head piece (10). lVithin theframe is formed a recess or chamber (11), in which is located a collar(12) suitably fixed to the shaft and normally held in the position shownin Fig. 4 by means of a spring (13) coiled around the shaft, acting inopposite directions against the end piece of the chamber and the collarrespectively.

The driven member comprises a pin (14:) loosely supported in ahorizontal position in the block (15) which is fastened to the jamb 1)of the gate, and is located thereon in angular relation to the shaft (8)so that when the gate is in its opened position the head (16) of the pinwill rest against the surface of the cone-shaped piece (10) near itsapex, and the foot thereof will abut against one of the cross bars (6)of the gate.

The manner in which my invention operates is as follows: As the carcomes to rest opposite the floor, the gate is manually opened byswinging it vertically against the jamb in which position it will holditself until closed. IVhen the car is in this position, the foot pieceof the shaft (8) will be located between the two cams (3). As, however,the car is raised or lowered, one of the cams will engage thisfoot-piece driving the shaft forward and causing the cone-shaped head toproject the pin endwise against the cross bar of the gate, thus throwingthe gate off its center of gravity and causing it to fall of its ownweight. The spring will return the shaft to its normal position and itwill be seen that when the gate is subsequently again opened, the pin(14) will be thrown back into its operative position against thecone-shaped head piece, thus setting the device for further action.

It is obvious that the construction and arrangement of the various partsmay be modified from those illustrated in the accompanying drawingwithout departing from the spirit of my invention.

What I claim as my invention and desire to secure by Letters Patent is:

1. A closing device for elevator well gates comprising in combination, adriving member and a driven member disposed at an angle to each other,each longitudinally movable; the driving member having an inclinedelement upon which the driven member loosely rests, said latter memberadapted to be projected endwise by a forward movement of the inclinedelement of the driving member;

and resilient means for returning the driving member to its normalposition.

2. In a closing device for elevator well gates the combination, with anelevator car bearing a cam, of a longitudinally movable driving memberadapted to engage and to be thrust forward by the cam as it approachessaid member, said driving member having an inclined element; and adriven member loosely resting on the inclined element of the drivingmember, adapted to be projected endwise by a forward movement of said inclined element of the driving member.

3. In a closing device for elevator well gates, the combination, with anelevator car bearing a cam, of a vertically swinging pivoted well gate;a longitudinallymovable driving member adapted to engage and to bethrust forward by the cam as it approaches said member, said drivingmember having an inclined element; and a driven member loosely restingon the inclined element of the driving member, adapted to be projectedendwise against the gate, when in its opened position, by a forwardmovement of said inclined element of the driving member.

4. In a closing device for elevator well gates, the combination, with anelevator car bearing a cam, of a vertically swinging pivoted well gate;a longitudinally movable driving member adapted to engage and to bethrust forward by the cam as it approaches said member, said drivingmember having an inclined element; a driven member loosely resting onthe inclined element of the driving member, adapted to be projectedendwise against the gate, when in its opened position,'by a forwardmovement of said inclined element of the driving member; and resilientmeans for returning the driving member to its normal position as the camdeparts from said member.

5. A closing device for elevator well gates comprising a casing; alongitudinally movable shaft mounted in and extending beyond saidcasing; a rearwardly inclined element carried on said shaft; a support;and a longitudinally movable member mounted on said support and normallyresting on the inclined element of the shaft, said member adapted to beprojected by a forward movement of the inclined element.

6. A closing device for elevator well gates comprising a casing; achamber formed in said casing; a longitudinally movable shaft mounted inand extending beyond said casing; a rearwardly inclinedv element carriedon said shaft; a collar fixed relative to the shaft and movable in saidchamber; a spring act-ing upon the collar and the opposite end of thechamber; a support; and a longitudinally movable member mounted in saidsupport and normally resting on the inclined element of the shaft, saidmember adapted to be projected by a forward movement of said inclinedelement.

ALBERT RUN KEL. WVitnesses:

GEORGE F. OOoNNoR, ALEXANDER E. EMPZ.

